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InteractivePrimer.com

Free, open-source interactive lessons you climb at your own pace, with animations, randomized quizzes, and progress tracking.

Education

Added July 10, 2026 · Last analysed July 10, 2026 · via · 80% unique tagline

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 10 July 2026; the live site may have changed since.

InteractivePrimer.com looks production-ready overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. What needs work: missing several security headers and no email security records.

Launched on Product Hunt on July 10, 2026. The site is hosted on GitHub Pages and served through Cloudflare, with a domain registered in 2023. We've detected 9 technologies on this site, covering analytics, CDN, DNS providers, and transactional email. The stack includes Cloudflare, Cloudflare DNS, and Cloudflare Web Analytics.

It's running the same core stack as 1,623 other launches.

If you own this site, refresh the snapshot and see the full fix list any time →

Vibe Score 23 · Few AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (9)

Infrastructure
CDN Cloudflare
Fastly
DNS Cloudflare DNS
Hosting GitHub Pages
Protocol HTTP/3
Email
Transactional email Resend
Analytics & Marketing
Analytics Cloudflare Web Analytics (2)
GoatCounter (2)
SEO Google Search Console

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Green hosted
Host runs on renewable energy. Data from The Green Web Foundation.
SSL Certificate
Google Trust Services
Valid 6 Jun 2026 to 4 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
3.2 years
Registered May 2023 · Cloudflare, Inc.

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
DKIM Detected via known email provider
DMARC Not published. Receivers fall back to permissive defaults.
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (2)

Local storage (2)
KeySizeDetected as
primer:locale 2 B -
primer:theme 5 B -

Readiness Breakdown How?

Custom title and meta description
Open Graph tags (title, image, description)
Twitter card meta tags
Canonical URL declared
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
Meta description is 187 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

Performance How?

230 ms Server response
66% Faster than peers
488 ms Largest contentful paint
0.34 Cumulative layout shift
711 KB Page weight
464 KB Image weight
3 Third-party domains
0 Console errors
0 Failed requests

1 images: 1 without width/height

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

Vibe Score Breakdown How?

SignalPoints
Placeholder branding +10
AI writing signals +5
AI iconography signals +3
AI code-structure signals +5

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

No AI stance declared
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (2175 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/concepts/computer-science/impacts-and-ethics/privacy-and-data-protection.html
Terms of Service
/concepts/applied-mathematics/maths-of-finance/stochastic-calculus/itos-lemma.html
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
96% unique

Security Headers (0/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

3 JS files
1 CSS files
3 Third-party domains

Brand Colours

App Manifest

InteractivePrimer.com
display: standalone 2 icons
theme #f8f4ec
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.